Jackpot Factory Promo!

I dont get many promotions from online casino's so I decided to email support@jackpotfactory and ask they add me to their promotion mailing list. I got an email back from them saying that they only add players to the list randomly. Three days later I got a snail mail with the promotion "Gone On Holiday" They gave me a link "jackpotfactory.com/holiday.php" to add my casino ID and get a Free No Deposit $10.00. I added my account numbers and got the $10.00 in about 30 minutes. So it seems like it pays to email support at some casino's and ask.